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A run-up in the stock price of Apple supplier Suzhou Anjie Technology lifted the company’s controlling shareholders into to the world’s billionaire ranks last week.

Shares in Anjie, an insulation supplier, rose from 72.1 yuan, or $11.8, on May 10 at the Shenzhen Stock Exchange to 89.1 yuan on Thursday. They ended the week at 87.88 yuan on Friday.

Chairman Wang Chunsheng and his wife, Anjie’s president Lv Li, hold a 65% stake that was worth $1.1 billion on Friday. Anjie's shares have gained more than 130% in the past year.

Anjie’s revenue in 2012 rose by 30% to 616 million yuan, and net profit jumped 85% to 187 million yuan. The company expects net profit in first six months this year to increase as much as 40% from a year earlier.

Other China-based billionaire suppliers to Apple include Wang Chuanfu of BYD, who ranked No. 641 on the 2013 Forbes Billionaires List with wealth of $2.3 billion, and Pan Zhengmin of AAC, was also worth $2.3 billion and had the same rank as Wang. BYD is about 10% owned by Warren Buffett's Berkshire Hathaway.